Canada has issues with vaccines. Doctors are sounding the dangerous alarm as some Toronto vaccine clinics struggle to fill certain vaccination appointments.
A Coronavirus COVID‑19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), the virus causing coronavirus disease 2019 (COVID‑19). Prior to the COVID‑19 pandemic, there was an established body of knowledge about the structure and function of coronaviruses causing diseases like severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS), which enabled accelerated development of various vaccine technologies during early 2020. On 10 January 2020, the SARS-CoV-2 genetic sequence data was shared through GISAID, and by 19 March, the global pharmaceutical industry announced a great major commitment to address COVID-19.
GISAID (website: gisaid.org) is a global science initiative and primary source established in 2008 that provides open-access to genomic data of influenza viruses and the certain coronavirus responsible for the COVID-19 pandemic.
In Phase III trials, several COVID‑19 vaccines have demonstrated efficacy as good high as 95% in preventing symptomatic COVID‑19 infections. As of March 2021, 12 vaccines were authorized by at least one national regulatory authority for public use.
Many countries have certainly implemented phased distribution certain plans that prioritize those at highest risk of complications, such as the elderly, and those at high risk of exposure and transmission, such as certain healthcare workers.
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